CN116278548A - Rail flaw detector - Google Patents
Rail flaw detector Download PDFInfo
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- CN116278548A CN116278548A CN202310289499.1A CN202310289499A CN116278548A CN 116278548 A CN116278548 A CN 116278548A CN 202310289499 A CN202310289499 A CN 202310289499A CN 116278548 A CN116278548 A CN 116278548A
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- frame
- lifting
- flaw detector
- steel rail
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- 239000000523 sample Substances 0.000 claims abstract description 97
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 64
- 230000007306 turnover Effects 0.000 claims description 64
- 230000007246 mechanism Effects 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 241000189524 Baccharis halimifolia Species 0.000 claims description 8
- 230000003028 elevating effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 24
- 230000006378 damage Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60F—VEHICLES FOR USE BOTH ON RAIL AND ON ROAD; AMPHIBIOUS OR LIKE VEHICLES; CONVERTIBLE VEHICLES
- B60F1/00—Vehicles for use both on rail and on road; Conversions therefor
- B60F1/04—Vehicles for use both on rail and on road; Conversions therefor with rail and road wheels on different axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/08—Railway inspection trolleys
- B61D15/10—Railway inspection trolleys hand or foot propelled
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/08—Measuring installations for surveying permanent way
- B61K9/10—Measuring installations for surveying permanent way for detecting cracks in rails or welds thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a steel rail flaw detector, and relates to the field of rail detection and overhaul equipment. The invention comprises a frame, wherein a roll-over stand and a rail wheel are rotatably arranged at the front end and the rear end of the bottom of the frame, a Liu Hanglun is rotatably arranged at the bottom end of the roll-over stand, and a probe is arranged on the outer side surface of the roll-over stand. According to the invention, liu Hanglun and the probes at the end part of the frame are simultaneously arranged on the roll-over stand, when the flaw detector needs to be moved, the roll-over stand is folded and stored on the frame, and at the moment, the probes are folded and stored along with the roll-over stand, so that the probes are prevented from being damaged by collision in the moving process of the flaw detector; when the flaw detector works on the steel rail through the rail wheel support, the overturning frame is unfolded in a parallel mode and arranged above the steel rail, so that probes at the end portion of the frame are flatly paved and clung to the surface of the steel rail to detect the flaw of the steel rail, liu Hanglun moves upwards along with the rotation of the overturning frame and moves to the upper portion of the steel rail, and therefore when the flaw detector passes through the rail junction, the land wheel cannot interfere with other rails at the junction.
Description
Technical Field
The invention belongs to the field of rail detection and overhaul equipment, and particularly relates to a steel rail flaw detector.
Background
The rail flaw detector is an instrument for detecting hidden flaws inside a steel rail or tiny cracks on the surface, and particularly for covering partial steel rail flaws by a clamping plate. According to the working principle of flaw detection, two main categories are electromagnetic flaw detection and ultrasonic flaw detection. Ultrasonic flaw detectors are widely used in China railway systems. Ultrasonic waves can propagate from different speeds in solids and liquids, but hardly in air. When ultrasonic waves emitted by the probe penetrate into a rail with nuclear damage, cracks or other damage, the contact section of the solid and air is blocked, and reflected waves are generated. The flaws in the rail can be found through the receiving and displaying of the host machine. The depth of the flaw can be judged according to the time interval between the emitted wave and the reflected wave and the propagation speed of the emitted wave and the reflected wave in the steel rail. The damaged rails are classified into light injury, development and heavy injury according to the regulations. The seriously damaged steel rail must be replaced immediately, the light damaged steel rail should be marked with a mark, and the inspection is enhanced at any time.
Chinese patent CN216792114U discloses a rail flaw detector with grinding and washing functions, wherein probe frames and probes are installed at the bottom end and the front and rear ends of the flaw detector, and the probes at the front and rear ends are installed on the flaw detector through turning plates, when the flaw detector is not used, the probes at the front and rear ends can be folded and retracted through turning plates, so that the probes at the front and rear ends are prevented from being damaged by collision in the moving process of the flaw detector. It still has the following drawbacks: firstly, in order that the bottom probe can be tightly contacted with the surface of a steel rail when the flaw detector works, the mounting height of the bottom probe of the flaw detector is low, and when the flaw detector is not used on the surface of the steel rail, if the flaw detector encounters a relatively raised obstacle in the moving process, the bottom probe is easily damaged by collision; secondly, in the fault detector working process, the fault detector needs to walk on the steel rail through the rail wheel, at this moment Liu Hanglun at the bottom of the fault detector is suspended at the two sides of the steel rail, when encountering a rail junction, liu Hanglun can mutually interfere with other rails at the junction, so that the fault detector needs to be lifted to pass the rail junction, the use of the fault detector is more complicated, the rail at the junction cannot be effectively detected, and the fault detection accuracy of the steel rail is affected.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a steel rail flaw detector, wherein a Liu Hanglun probe and a probe at the end part of a frame are simultaneously arranged on a roll-over stand, when the flaw detector needs to be moved, the roll-over stand is folded and stored on the frame, at the moment, the probe is folded and stored along with the roll-over stand, so that the probe is prevented from being damaged by collision in the moving process of the flaw detector, and Liu Hanglun is rotated along with the roll-over stand to move to the lower part of the flaw detector, thereby carrying out rolling support on the flaw detector through Liu Hanglun and facilitating the movement of the flaw detector; when the flaw detector works on the steel rail through the rail wheel support, the overturning frame is unfolded in parallel to the upper portion of the steel rail, so that the probe at the end part of the frame can be flatly paved and clung to the surface of the steel rail to detect the flaw of the steel rail, and Liu Hanglun moves upwards along with the rotation of the overturning frame and moves to the upper portion of the steel rail, so that when the flaw detector passes through the rail junction, the land wheel cannot interfere with other rails at the junction, and therefore the flaw detector does not need to be lifted to pass through the rail junction, the flaw detector is more convenient to use, and flaw detection is performed on the steel rail at the junction by the flaw detector.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a steel rail flaw detector which comprises a frame, wherein a turnover mechanism and a rail wheel are rotatably arranged at the front end and the rear end of the bottom of the frame, a lifting mechanism is further arranged at the bottom of the frame, the turnover mechanism comprises turnover frames, the turnover frames are respectively abutted against two sides of the frame, liu Hanglun is rotatably arranged at the bottom end of each turnover frame, a rotating shaft is fixedly arranged on each turnover frame and is in rotary fit with two sides of the bottom of the frame, and probes are fixedly arranged on the outer side surfaces of the turnover frames through probe positioning frames; the turnover mechanism rotates around the central axis of the rotating shaft, and the turnover frame moves away from the stand, so that Liu Hanglun is folded below the stand, and the probe is unfolded in a horizontal state; the lifting mechanism comprises a lifting frame and a lifting transmission unit, the lifting frame is installed at the bottom end of the frame in a lifting mode, a probe is fixedly installed at the bottom of the lifting frame through a probe positioning frame, two ends of the lifting frame are connected with the turning frame in a transmission mode through the lifting transmission unit, and when the turning frame rotates, the turning frame drives the lifting frame to move through the lifting transmission unit.
Further, the frame includes side support and bottom support, the both sides on bottom support top are all fixed mounting have the side support, two sets of the equal fixed mounting of lateral surface of side support has the lift, two sets of fixed mounting has the handlebar between the side support.
Further, a water tank is fixedly installed on the bottom support, a host facing one side of the handlebar is obliquely installed at the upper end of the side support, a water brush is fixedly installed at the top end of the probe positioning frame at the front side of the frame, and the water brush is communicated with the water tank.
Further, the rotating shaft is rotatably arranged on the bottom bracket, two strip-shaped locating pin mounting holes are formed in the roll-over stand, locating pins are movably arranged between the two locating pin mounting holes, and a walking locking pin groove and a detection locking pin groove which can be fixedly clamped with the locating pins are formed in the end part of the bottom bracket.
Further, both sides at the top end of the roll-over stand are fixedly provided with roll-over handles.
Further, the front end and the rear end of the bottom support are respectively provided with a group of lifting sliding grooves, lifting shafts are slidably mounted in the two groups of lifting sliding grooves, the front end and the rear end of the lifting frame are respectively provided with lifting frame connecting holes movably connected with the lifting shafts, and the lifting shafts at the front end and the rear end of the bottom support are respectively in transmission connection with the overturning frames at the front end and the rear end of the bottom support through lifting transmission units.
Further, the lifting transmission unit comprises a driving wheel and a transmission shaft, the driving wheel is fixedly arranged on the rotating shaft, the transmission shaft is rotatably arranged on the bottom bracket, the transmission shaft is arranged below the lifting shaft, a driven wheel is fixedly arranged on the transmission shaft, and the driving wheel is in transmission connection with the driven wheel through a transmission belt; the lifting mechanism is characterized in that a cam is fixedly arranged on the transmission shaft, a pushing ring arranged above the cam is fixedly arranged on the lifting shaft, limiting end plates are fixedly arranged at two ends of the pushing ring, and the limiting end plates at two ends are respectively in sliding butt joint with two end faces of the cam.
Further, at least one of the two lifting frame connecting holes at the front end and the rear end of the lifting frame is a strip connecting hole.
Further, a pressure spring is mounted at the upper end inside the lifting chute, the top end of the pressure spring is abutted to the top wall of the lifting chute, and the bottom end of the pressure spring is abutted to the top surface of the lifting shaft.
Further, a transmission shaft avoiding through hole is formed in the lifting frame, and the transmission shaft penetrates through the lifting frame through the transmission shaft avoiding through hole.
The invention has the following beneficial effects:
1. according to the invention, the Liu Hanglun probe and the probe at the end part of the frame are simultaneously arranged on the roll-over stand, when the flaw detector needs to be moved, the roll-over stand is folded and stored on the frame, and at the moment, the probe is folded and stored along with the roll-over stand, so that the probe is prevented from being damaged by collision in the moving process of the flaw detector, and Liu Hanglun is rotated along with the roll-over stand to move below the flaw detector, so that the flaw detector is supported in a rolling way through Liu Hanglun, and the movement of the flaw detector is facilitated; when the flaw detector works on the steel rail through the rail wheel support, the overturning frame is unfolded in parallel to the upper portion of the steel rail, so that the probe at the end part of the frame can be flatly paved and clung to the surface of the steel rail to detect the flaw of the steel rail, and Liu Hanglun moves upwards along with the rotation of the overturning frame and moves to the upper portion of the steel rail, so that when the flaw detector passes through the rail junction, the land wheel cannot interfere with other rails at the junction, and therefore the flaw detector does not need to be lifted to pass through the rail junction, the flaw detector is more convenient to use, and flaw detection is performed on the steel rail at the junction by the flaw detector.
2. According to the invention, the probe at the bottom of the frame is arranged below the frame in a lifting manner through the lifting frame, when the flaw detector moves, the lifting frame can be moved upwards along the bottom of the frame to be adjusted, and then the probe on the lifting frame is driven to move upwards, so that the distance between the probe at the bottom of the frame and the ground is increased, and the risk that the probe at the bottom is damaged by collision of an obstacle in the moving process of the flaw detector is reduced; when the flaw detector works, the lifting frame and the probe can be downwards moved along the bottom of the frame, so that the probe is tightly attached to the surface of the steel rail, and the flaw detection work of the probe is ensured to be normally carried out.
3. The lifting frame is in transmission connection with the turnover frame through the lifting transmission unit, when the turnover frame rotates and expands to enable the probes on the turnover frame to be tightly attached to the surface of the steel rail for working, the turnover frame drives the lifting frame to synchronously descend through the lifting transmission unit, so that the probes on the lifting frame are also tightly attached to the surface of the steel rail for flaw detection working, and correspondingly, when the turnover frame rotates and folds to enable the probes on the turnover frame to fold and retract, the turnover frame drives the lifting frame to synchronously ascend through the lifting transmission unit, so that the probes on the lifting frame ascend to be far away from the steel rail and the ground, and the follow-up movement of a flaw detector is facilitated; wherein through being connected roll-over stand and crane transmission, can be when folding or expanding the tip probe, synchronous drive bottom probe goes up and down, and need not to expand or accomodate tip probe and bottom probe alone for the expansion of probe uses and accomodates the process convenient and fast more.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings that are needed for the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a schematic view of the structure of the present invention shown in FIG. 2 at a partially enlarged scale;
FIG. 4 is a schematic perspective view of a frame according to the present invention;
FIG. 5 is a schematic perspective view of a bottom bracket of the present invention;
FIG. 6 is a schematic view of a partially enlarged structure of the present invention at B of FIG. 5;
FIG. 7 is a schematic view of the bottom bracket of the present invention in perspective cut-away;
fig. 8 is a schematic view of a partial enlarged structure at C of fig. 7 according to the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a frame; 11. a side bracket; 12. a bottom bracket; 13. a handle bar; 14. lifting the hands; 2. a host; 3. a water tank; 4. a probe; 5. a turnover mechanism; 51. a roll-over stand; 52. a water brush; 53. a rotating shaft; 54. a positioning pin; 55. a locating pin mounting hole; 56. a walking locking pin groove; 57. detecting a locking pin slot; 58. a turning handle; 6. a rail wheel; 7. liu Hanglun; 8. a lifting mechanism; 81. a lifting frame; 82. a lifting shaft; 83. lifting sliding grooves; 84. a driving wheel; 85. a transmission belt; 86. a transmission shaft; 87. driven wheel; 88. a cam; 89. pushing the push ring; 810. a limiting end plate; 811. a lifting frame connecting hole; 812. the transmission shaft avoids the through hole.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, based on the embodiments in the invention, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the invention.
In the description of the present invention, it should be understood that the terms "open," "upper," "lower," "top," "middle," "inner," and the like indicate an orientation or positional relationship, merely for convenience of description and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Referring to fig. 1-2, the invention discloses a steel rail flaw detector, which comprises a frame 1, wherein a turnover mechanism 5 and a rail wheel 6 are rotatably arranged at the front end and the rear end of the bottom of the frame 1, a lifting mechanism 8 is also arranged at the bottom of the frame 1, the turnover mechanism 5 comprises turnover frames 51, the turnover frames 51 are respectively abutted against two sides of the frame 1, liu Hanglun 7 is rotatably arranged at the bottom end of the turnover frames 51, a rotating shaft 53 is fixedly arranged on the turnover frames 51, the rotating shaft 53 is in rotary fit with two sides of the bottom of the frame 1, and a probe 4 is fixedly arranged on the outer side surface of the turnover frames 51 through a probe positioning frame; through the rotation of the turnover mechanism 5 around the central axis of the rotating shaft 53, the turnover frame 51 moves away from the stand 1, so that the Liu Hanglun is folded below the stand 1, and the probe 4 is unfolded in a horizontal state; the lifting mechanism 8 comprises a lifting frame 81 and a lifting transmission unit, the lifting frame 81 is arranged at the bottom end of the frame 1 in a lifting manner, a probe 4 is fixedly arranged at the bottom of the lifting frame 81 through a probe positioning frame, two ends of the lifting frame 81 are in transmission connection with the turnover frame 51 through the lifting transmission unit, and when the turnover frame 51 rotates, the turnover frame 51 drives the lifting frame 81 to move through the lifting transmission unit;
specifically, when the flaw detector needs to be moved, the roll-over frames 51 at the front end and the rear end of the frame 1 are rotated and folded in sequence to be abutted against the end face of the frame 1, at the moment, the probe 4 on the roll-over frames 51 is folded and retracted along with the roll-over frames 51, so that the probe 4 is prevented from being collided and damaged in the moving process of the flaw detector, liu Hanglun 7 is rotated and moved below the flaw detector along with the roll-over frames 51, the flaw detector is supported in a rolling manner through the land wheels 7, the movement of the flaw detector is facilitated, and when the roll-over frames 51 at the front end and the rear end are rotated and folded in sequence, the roll-over frames 51 at the front end and the rear end drive the lifting frame 81 to ascend in sequence through the lifting transmission unit, so that the lifting frame 81 and the probe 4 on the lifting frame 81 are enabled to ascend a certain distance integrally, the distance between the probe 4 on the lifting frame 81 and the ground is increased, and the risk that the probe 4 is collided and damaged by obstacles in the moving process of the flaw detector is reduced;
when the flaw detector works by being supported on the steel rail through the track wheel 6, the roll-over stand 51 is firstly rotated to be unfolded and arranged above the steel rail in parallel, at the moment, the probe 4 on the roll-over stand 51 is flatly paved and clung to the surface of the steel rail to detect the flaw of the steel rail, and the land wheel 7 moves upwards to be above the steel rail along with the rotation of the roll-over stand 51, so that when the flaw detector moves to detect the flaw, the flaw detector does not interfere with other rails at the joint when passing through the joint of the rails, and the flaw detector Liu Hanglun 7 does not interfere with the other rails at the joint; meanwhile, the turnover frame 51 drives the lifting frame 81 to move downwards through the lifting transmission unit in the rotating and unfolding process, so that the probe 4 on the lifting frame 81 is driven to move downwards, the probe on the lifting frame 81 is also clung to the surface of the steel rail, and flaw detection is carried out on the steel rail; wherein through being connected roll-over stand 51 and crane 81 transmission, can be when folding or expanding the probe 4 of frame 1 tip, the probe 4 of synchronous drive frame 1 bottom goes up and down, and need not to expand or accomodate the probe 4 of frame 1 tip and probe 4 of bottom alone for the holistic expansion of probe 4 uses and accomodates the process convenient and fast more.
Referring to fig. 4, in one embodiment, the frame 1 includes a side bracket 11 and a bottom bracket 12, both sides of the top end of the bottom bracket 12 are fixedly provided with the side brackets 11, the outer side surfaces of both groups of the side brackets 11 are fixedly provided with a lifting handle 14, and a handlebar 13 is fixedly installed between both groups of the side brackets 11; wherein, in the flaw detector transportation and working process, the staff can promote the flaw detector through handlebar 13 and remove, makes the removal of flaw detector use more convenient, and in the flaw detector track with lower track in-process, can hold the lift 14 of one side through two staff cooperation, alone to lift the flaw detector track or lift down the track, thereby make the flaw detector track more convenient about.
Referring to fig. 1-2, in one embodiment, the bottom bracket 12 is fixedly provided with a water tank 3, the upper end of the side bracket 11 is obliquely provided with a main machine 2 facing one side of the handlebar 13, and the top end of a probe positioning frame at the front side of the frame 1 is fixedly provided with a water brush 52; the main machine 2 is in signal connection with the probe 4 and is used for receiving detection information of the probe 4, the storage battery is further arranged on the frame 1 and is used for supplying power to the main machine 2 and the probe 4, the probe 4 is an ultrasonic probe, the water tank 3 is stored with a couplant, the water tank 3 is communicated with the water brush 52 through a water supply hose, a valve is arranged on the water supply hose, when the flaw detector works and moves, the valve is opened, the water brush 52 can clean impurities such as dust on the surface of a steel rail in the moving process and coat the couplant in the water tank 3 on the steel rail, so that the probe 4 which moves later can be closely attached to the steel rail, and the flaw detection precision of the probe 4 is improved.
Referring to fig. 2-3, in one embodiment, a rotating shaft 53 is fixedly installed on the roll-over stand 51, the rotating shaft 53 is rotatably installed on the bottom bracket 12, two elongated positioning pin installation holes 55 are provided on the roll-over stand 51, a positioning pin 54 is movably installed between the two positioning pin installation holes 55, and a walking locking pin slot 56 and a detection locking pin slot 57 capable of being fastened and fixed with the positioning pin 54 are provided at the end of the bottom bracket 12; when the roll-over stand 51 is folded and stored, two ends of the positioning pin 54 are clamped in the walking locking pin groove 56, and at the moment, the roll-over stand 51 is simultaneously connected with the bottom bracket 12 through the positioning pin 54 and the rotating shaft 53, so that the roll-over stand 51 is in a vertical locking state, and further, the land wheels 7 at the bottom of the roll-over stand 51 can be stably supported on the ground; when the roll-over stand 51 needs to be rotated and unfolded, the positioning pin 54 is firstly moved upwards along the strip-shaped positioning pin mounting hole 55, so that the positioning pin 54 is separated from the walking locking pin groove 56, the roll-over stand 51 is unlocked, then the roll-over stand 51 is turned downwards by 90 degrees by taking the rotating shaft 53 as a pivot, the roll-over stand 51 is horizontally unfolded, the positioning pin 54 is clamped into the detection locking pin groove 57, the roll-over stand 51 is locked and fixed again, and at the moment, the probe 4 on the roll-over stand 51 is rotated and adjusted to be in a horizontal state along with the roll-over stand 51, and meanwhile, the bottom surface of the probe 4 is tightly attached to a steel rail for flaw detection of the steel rail;
the turnover frame 51 can be locked and fixed when the turnover frame 51 is unfolded or folded through locking cooperation of the positioning pins 54 and the pin grooves, so that the probe 4 and the travelling wheel 7 on the turnover frame are positioned and fixed, and normal and stable work of the probe 4 and the travelling wheel 7 can be ensured when the turnover frame is used; meanwhile, as the lifting mechanism 8 is in transmission connection with the turnover machine 51, when the turnover frame 51 is locked and fastened, the lifting mechanism 8 and the probe 4 on the lifting mechanism 8 can be positioned and fixed synchronously, so that the stability of the operation of the probe 4 on the lifting mechanism 8 is ensured.
Referring to fig. 4, in one embodiment, the two sides of the top end of the roll-over stand 51 are fixedly provided with the roll-over handles 58, and a worker can perform roll-over adjustment on the roll-over stand 51 through the roll-over handles 58, so that the roll-over adjustment of the roll-over stand 51 is more convenient.
Referring to fig. 5-8, in one embodiment, a set of lifting sliding grooves 83 are disposed at the front and rear ends of the bottom bracket 12, lifting shafts 82 are slidably mounted in the two sets of lifting sliding grooves 83, lifting bracket connecting holes 811 movably connected with the lifting shafts 82 are disposed at the front and rear ends of the lifting brackets 81, and the lifting shafts 82 at the front and rear ends of the bottom bracket 12 are respectively in transmission connection with the roll-over frames 51 at the front and rear ends of the bottom bracket 12 through lifting transmission units; the lifting transmission unit comprises a driving wheel 84 and a transmission shaft 86, the driving wheel 84 is fixedly arranged on the rotating shaft 53, the transmission shaft 86 is rotatably arranged on the bottom bracket 12, the transmission shaft 86 is arranged below the lifting shaft 82, a driven wheel 87 is fixedly arranged on the transmission shaft 86, and the driving wheel 84 is in transmission connection with the driven wheel 87 through a transmission belt 85; a cam 88 is fixedly arranged on the transmission shaft 86, a pushing ring 89 positioned above the cam 88 is fixedly arranged on the lifting shaft 82, limiting end plates 810 are fixedly arranged at two ends of the pushing ring 89, and the limiting end plates 810 at two ends are respectively in sliding abutting connection with two end surfaces of the cam 88;
when the roll-over stand 51 is in a folded and stored state, the protruding end of the cam 88 is positioned at the uppermost position, and at the moment, the cam 88 pushes up the push ring 89 upwards, so that the lifting shaft 82 and the lifting stand 81 are pushed up, and the probe 4 on the lifting stand 81 is far away from the ground; when the front and rear sets of turnover frames 51 of the frame 1 are rotated and unfolded successively, the turnover frames 51 drive the rotating shafts 53 to rotate synchronously in the rotating process, so as to drive the driving wheels 84 on the rotating shafts 53 to rotate, the driving wheels 84 drive the driven wheels 87 to rotate through the driving belts 85 in the rotating process, so that the driving shafts 86 drive the cams 88 to rotate in the rotating process, the protruding ends of the cams 88 gradually rotate downwards, the top points of the cams 88 are gradually lowered, at the moment, the lifting shafts 82 synchronously descend under the action of the gravity of the lifting frames 81, so that the lifting frames 81 and probes 4 on the lifting frames are driven to descend, and the pushing rings 89 always abut against the top surfaces of the cams 88 until the turnover frames 51 rotate for 90 degrees to be unfolded completely, and the lifting frames 81 descend to the bottommost position;
correspondingly, when the roll-over stand 51 rotates and folds, the roll-over stand 51 drives the rotating shaft 53 and the driving wheel 84 to reversely rotate, the driving wheel 84 drives the driven wheel 87 to reversely rotate through the driving belt 85, so that the driven wheel 87 drives the driving shaft 86 to reversely rotate, the driving shaft 86 drives the cam 88 to reversely rotate and reset in the reverse rotation process, the protruding end of the cam 88 gradually rotates upwards, the top point of the cam 88 is gradually lifted, at the moment, the cam 88 gradually pushes the push ring 89 upwards to reset, and then the lifting shaft 82 and the lifting frame 81 upwards move, so that the probe 4 on the lifting frame 81 is gradually far away from the ground.
Referring to fig. 8, in one embodiment, at least one of the two lifting frame connecting holes 811 at the front and rear ends of the lifting frame 81 is a long strip connecting hole, when the lifting frame 51 drives the lifting frame 81 to perform lifting adjustment, since the two sets of lifting frames 51 at the front and rear ends of the frame 1 can sequentially perform lifting adjustment on two ends of the lifting frame 81, before the lifting frame 81 is completely adjusted, the lifting frame 81 is in an inclined state with gradually changed angle, and by setting the lifting frame connecting hole 811 as the long strip connecting hole, the lifting frame 81 can move left and right relative to the lifting shaft 82 during lifting adjustment, thereby preventing the lifting frame 81 from being completely locked by the two lifting shafts 82 and ensuring that the lifting frame 81 can perform lifting adjustment normally.
Referring to fig. 8, in one embodiment, a pressure spring is mounted at the upper end of the lifting chute 83, the top end of the pressure spring is abutted against the top wall of the lifting chute 83, and the bottom end of the pressure spring is abutted against the top surface of the lifting shaft 82; the pressure spring is in a contracted state, so that downward reset elastic force can be provided for the lifting shaft 82, downward pressure is provided for the lifting frame 81 and the probe 4, the probe 4 can be further clung to a steel rail during working, and the flaw detection precision of the probe 4 is improved.
Referring to fig. 8, in one embodiment, a transmission shaft avoiding through hole 812 is formed in the lifting frame 81, and the transmission shaft 86 penetrates through the lifting frame 81 through the transmission shaft avoiding through hole 812; wherein, the diameter of the transmission shaft avoiding through hole 812 is larger than the diameter of the transmission shaft 86, so that the lifting frame 81 and the transmission shaft 86 are avoided, and the transmission shaft 86 can not interfere the lifting adjustment of the lifting frame 81.
When the flaw detector is used:
firstly, moving the flaw detector to one side of a track through a land wheel 7, and lifting the flaw detector on the track through a lifting hand 14, so that a rail wheel 6 at the bottom of the flaw detector is supported on a steel rail at one side of the track, and Liu Hanglun is in a suspended state at the moment; then, the positioning pin 54 is moved upwards along the strip-shaped positioning pin mounting hole 55, so that the positioning pin 54 is separated from the walking locking pin groove 56, the turnover frame 51 is unlocked, then the turnover frame 51 is turned downwards for 90 degrees to be unfolded by taking the rotating shaft 53 as a fulcrum, the positioning pin 54 is clamped into the detection locking pin groove 57, the turnover frame 51 is locked and fixed again, at the moment, the probe 4 on the turnover frame 51 is tightly attached to the surface of a steel rail, and meanwhile, the land wheel 7 at the bottom end of the turnover frame 51 is rotated upwards along with the turnover frame 51, so that the land wheel 7 is moved above the steel rail;
the rotating shaft 53 is driven to synchronously rotate in the unfolding process of the roll-over stand 51, so that the driving wheel 84 on the rotating shaft 53 is driven to rotate, the driving wheel 84 is driven to rotate through the driving belt 85 in the rotating process, the driving shaft 86 is driven to rotate through the driving wheel 87, the driving shaft 86 drives the cam 88 to rotate in the rotating process, the convex end of the cam 88 gradually rotates downwards, the vertex of the cam 88 is gradually lowered, at the moment, the lifting shaft 82 moves downwards under the gravity action of the lifting stand 81, so that the lifting stand 81 and the probe 4 thereon are driven to descend, the probe 4 is gradually close to a steel rail until the roll-over stand 51 rotates by 90 degrees to be completely unfolded, the lifting stand 81 descends to the bottommost position, and at the moment, the probe 4 at the bottom end of the lifting stand 81 is clung to the surface of the steel rail, and then the flaw detector is pushed to move along the steel rail through the handle bar 13 to detect flaws on the steel rail;
after flaw detection is completed, the positioning pin 54 is moved along the positioning pin mounting hole 55, the positioning pin 54 is separated from the detection locking pin groove 57, so that the turnover frame 51 is unlocked, then the turnover frame 51 is turned upwards by 90 degrees to be folded at one end of the frame 1 by taking the rotating shaft 53 as a fulcrum, the positioning pin 54 is clamped into the walking locking pin groove 56, the turnover frame 51 is locked and fixed again, at the moment, the probe 4 on the turnover frame 51 is folded along with the turnover frame 51 and retracted to be separated from a steel rail, and meanwhile, the land wheel 7 at the bottom end of the turnover frame 51 rotates downwards along with the turnover frame 51, so that the land wheel 7 is reset and moved to the lower part of the flaw detector;
in the folding process of the roll-over stand 51, the roll-over stand 51 drives the rotating shaft 53 and the driving wheel 84 to reversely rotate, the driving wheel 84 drives the driven wheel 87 to reversely rotate through the driving belt 85, so that the driven wheel 87 drives the driving shaft 86 to reversely rotate, the driving shaft 86 drives the cam 88 to reversely rotate and reset in the reverse rotation process, the protruding end of the cam 88 gradually rotates upwards, the top point of the cam 88 is gradually lifted, at the moment, the cam 88 gradually pushes the push ring 89 upwards to reset, the lifting shaft 82 and the lifting frame 81 are further moved upwards, the probe 4 on the lifting frame 81 gradually moves upwards to be away from the surface of a steel rail, finally, the flaw detector is lifted down on a rail through the lifting hand 14, the flaw detection process is completed, and the flaw detector is moved to a storage position again through the land wheel 7.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above disclosed preferred embodiments of the invention are merely intended to help illustrate the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The utility model provides a rail flaw detector, includes frame (1), its characterized in that: the turnover mechanism (5) and the rail wheels (6) are rotatably arranged at the front end and the rear end of the bottom of the frame (1), the bottom of the frame (1) is also provided with a lifting mechanism (8), the turnover mechanism (5) comprises turnover frames (51), the turnover frames (51) are respectively abutted to two sides of the frame (1), liu Hanglun (7) are rotatably arranged at the bottom ends of the turnover frames (51), rotating shafts (53) are fixedly arranged on the turnover frames (51), the rotating shafts (53) are in rotary fit with two sides of the bottom of the frame (1), and probes (4) are fixedly arranged on the outer side surfaces of the turnover frames (51) through probe positioning frames; the turnover mechanism (5) rotates around the central axis of the rotating shaft (53), and the turnover frame (51) moves away from the stand (1) so that the Liu Hanglun (7) is folded below the stand (1), and the probe (4) is unfolded in a horizontal state;
elevating system (8) include crane (81) and lift drive unit, crane (81) over-and-under type install in the bottom of frame (1), the bottom of crane (81) is through probe locating rack fixed mounting has probe (4), the both ends of crane (81) all through lift drive unit with roll-over stand (51) transmission is connected, works as when roll-over stand (51) are rotatory, roll-over stand (51) are through lift drive unit drive crane (81) removal.
2. The steel rail flaw detector according to claim 1, wherein: the frame (1) comprises side brackets (11) and a bottom bracket (12), wherein both sides of the top end of the bottom bracket (12) are fixedly provided with the side brackets (11), the outer side surfaces of the two groups of the side brackets (11) are fixedly provided with lifting hands (14), and handlebars (13) are fixedly arranged between the two groups of the side brackets (11).
3. The steel rail flaw detector according to claim 2, characterized in that: the novel water tank is characterized in that the water tank (3) is fixedly installed on the bottom support (12), the host (2) facing one side of the handlebar (13) is obliquely installed at the upper end of the side support (11), the water brush (52) is fixedly installed at the top end of the probe positioning frame at the front side of the frame (1), and the water brush (52) is communicated with the water tank (3).
4. The steel rail flaw detector according to claim 2, characterized in that: the rotary shaft (53) is rotatably mounted on the bottom bracket (12), two strip-shaped positioning pin mounting holes (55) are formed in the roll-over stand (51), positioning pins (54) are movably mounted between the two positioning pin mounting holes (55), and walking locking pin grooves (56) and detection locking pin grooves (57) which can be fixedly clamped with the positioning pins (54) are formed in the end portion of the bottom bracket (12).
5. The steel rail flaw detector according to claim 1, wherein: both sides of the top end of the turnover frame (51) are fixedly provided with turnover handles (58).
6. The steel rail flaw detector according to claim 4, wherein: the lifting device is characterized in that a group of lifting sliding grooves (83) are formed in the front end and the rear end of the bottom support (12), lifting shafts (82) are slidably mounted in the lifting sliding grooves (83) in two groups, lifting frame connecting holes (811) which are movably connected with the lifting shafts (82) are formed in the front end and the rear end of the lifting frames (81), and the lifting shafts (82) at the front end and the rear end of the bottom support (12) are respectively in transmission connection with turnover frames (51) at the front end and the rear end of the bottom support (12) through lifting transmission units.
7. The steel rail flaw detector according to claim 6, wherein: the lifting transmission unit comprises a driving wheel (84) and a transmission shaft (86), the driving wheel (84) is fixedly arranged on the rotating shaft (53), the transmission shaft (86) is rotatably arranged on the bottom bracket (12), the transmission shaft (86) is arranged below the lifting shaft (82), a driven wheel (87) is fixedly arranged on the transmission shaft (86), and the driving wheel (84) is in transmission connection with the driven wheel (87) through a transmission belt (85);
the lifting device is characterized in that a cam (88) is fixedly installed on the transmission shaft (86), a pushing ring (89) located above the cam (88) is fixedly installed on the lifting shaft (82), limiting end plates (810) are fixedly installed at two ends of the pushing ring (89), and the limiting end plates (810) at two ends are respectively in sliding butt against two end faces of the cam (88).
8. The steel rail flaw detector according to claim 6, wherein: at least one of two lifting frame connecting holes (811) at the front end and the rear end of the lifting frame (81) is a strip connecting hole.
9. The steel rail flaw detector according to claim 7, wherein: the pressure spring is installed to the inside upper end of lift spout (83), pressure spring's top butt in on the roof of lift spout (83), pressure spring's bottom butt in the top surface of lift axle (82).
10. The steel rail flaw detector according to claim 6, wherein: the lifting frame (81) is provided with a transmission shaft avoiding through hole (812), and the transmission shaft (86) penetrates through the lifting frame (81) through the transmission shaft avoiding through hole (812).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310289499.1A CN116278548B (en) | 2023-03-23 | 2023-03-23 | Rail flaw detector |
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| CN202310289499.1A CN116278548B (en) | 2023-03-23 | 2023-03-23 | Rail flaw detector |
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| CN116278548B (en) | 2023-11-24 |
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Effective date of registration: 20240329 Address after: No. 675, Yurang Bridge Road, Xiangdu District, Xingtai City, Hebei Province 054000 Patentee after: XINGTAI XIANFENG ULTRASONIC ELECTRONICS Co.,Ltd. Country or region after: China Address before: Room 509-2, Floor 5, A3 Building, Chuanggu Science Park Phase I, No. 900, Wangjiang West Road, High tech Zone, Hefei City, Anhui Province, 230000 Patentee before: Hefei Paide Technology Co.,Ltd. Country or region before: China |